Invalid-bed.



No. 809,051. y PATBNTBD JAN. z, 1906. L. A. GoonsoN @L W. A. NAsoN.

INVALID BBD. APPLIGATION FILED 11H22, 1905.

No. 809,051. PATEN'I'ED JAN. 2, 1906. L. A. GOODSON da W. A. NASON.INVALID BED.

APPLIATION FILED MAYZZ, 1905. j@ 2,

2 SHEETS-SHEET 2.

pan.

UNITED sTATEs PATENT OFFICE.

LYDIA A. GOODSON, OF ELGIN, ANI) WILLIAM A. NASON, OF ALGONQUIN,

' ILLINOIS. l

INVALID-BED.

Specification of Letters Patent.

Patented Jan. 2, 1906.

This invention relates to improvements inV beds for invalids orbedridden persons, designed vto facilitate attendance upon such persons.

It consists of the features of construction set out in the claims.

In the drawings, Figure 1 is a side elevation of a bed structureembodying our improvements. Fig. 2 is a detail plan view of thestructure with mattress removed and 'frame broken away, showing thedevices for operating the bed-pan and pad. Fig. 3 is a 'section at theline 3 3 on Fig. 2, showing the mattress and pad in position. Fig. 4 isa detail section at the line 4 4 on Fig. 1. Fig. 5 is a longitudinalvertical section of the bed- Fig. 6 is a bottom plan view of the same.Fig. 7 is a detail section through the bottom portion of the bed-pan andthe plate on which it is carried, showing the means of securing theparts together. Fig. 8 is a plan view of the pan-supporting plate. Fig.9 is a longitudinal section of the pan and carrying-plate in a modifiedform. Fig. 1() is a transverse section of the same at the line 10 V10 onFig. 9.

In the structure shown in the drawings the mattress 1,which rests upon asuitable spring support of so-called woven-wire mattress 2, has anaperture 1a registering with a corthe woven-wire spring or mattress, andit is carried and supported by a perforated sheetmetal plate 4. Thisplate is made longitudinally rigid by any suitable means and is mountedupon the wrists 5fL at the ends of the crank-arms 5b of the crank-shafts5. These crank-shafts are provided with bearings 6, in which they rock,supported by the side rails 7 of the frame of the bed or woven-wire mat-The aperture 1a in the mattress tress 2. The j ournal-bearings for thecrankshaftS, respectively, are at a distance apart on' the side rail 7equal to the distance between the wrists 5a on the perforated plate 4,said plate constituting a link which connects the crank-wrists holdingthe crank-arms parallel in the rocking movement of the shafts. Theshafts are journaled at such position that when the crank-arms aresubstantially horizontal the plug 3, resting on the link plate 4, is inposition, entering through the apertures 2a and la, to bring the pluginto position to close the aperture 1ab of the upper mattress. In orderthat the plug may be carried and held securely, the rock-shafts areconnected by additional parallel lever-arms 9 9 at an oblique angle tothe crank-arms 5 5, and these lever-arms 9 9a are connected by linkbars10 10, pivotedat opposite ends to the lever-arms'9 9a, at equaldistances from the two rock-shaft-journal bearings, so that said links10 are parallel to the side rails 7. The lever-arms 9 are extended downfrom the pivotal connection of the link 10, preferably, as shown, at anVangle to the preceding eX- tending of the link 10, and to one of theselever-arms 9 there is pivotally connected a ratchet link-bar 11 having aslot 11a, through which passes the pivot-bolt 9C, which connects thelever-arm 9a with the link 10, and at the upper side of the slot thelink-bar is provided with ratchet-teeth 11b for engaging the pivot-bolt90. It will be seen that this structure adapts the ratchet-link 11 tolock the rock-shafts and their connected leverarms in position,upholding the plug 3 in the position shown in Fig. S-that is, closingthe aperture in the mattress-and that by releasing the ratchet-bar theplug can be lowered to any distance and locked in any position withinthe range of the ratchet-notches.

The bed-pan 12 is adapted to be substituted for the plug 3 on thelink-plate 4 and is therefore of suitable dimensions to be passed upthrough the apertures 1L and 2a to bring its IOO upper marginsubstantially level with the top are adapted to be retained in positionon the lIO link plate by means adapted to prevent lateral movement ofthe plug or pan. The preferred means for this purpose adapted to leavethe pan with a flat bottom consists in forming on the plate an upwardprotrusion, as the upstruck boss 4b, which enters a corresponding recess14, formed in the bottom of the pan or plug. In the case of the pan thisrecess may be struck up in the bottom sheet of the pan itself, andin thecase of aplug abottom metal sheet 14UL is provided, having the recess 14similarly struck up in it. For securely locking the plug or pan to theplate the upstruck boss 4b of the plate has a slot 4, and from thebottom of the recess 14 a stud 15 is provided, projecting downward,having at its lower end a turn-button 15, adapted to pass through theslot 4C and to be turned ninety degrees across the same. Another form ofmeans for engaging the pan or plug with the plate so as to preventlateral movement is shown in Figs. 9 and 10. This means consists of alongitudinal tongue 4C, mounted upon the upper side of the plate 4 andoHset upwardly therefrom, said tongue being adapted to enter alongitudinal pocket 14X, formed on the bottom of the pan and on thebottom of th bottom plate 14a of the plug. Preferably, in order to causethe pan to stand steady notwithstanding the longitudinal upraise formedon the bottom by the longitudinal pocket, two longitudinal ribs 14y 14yare also formed on the bottom plate of the pan or plug. In this form ofthe device it is desirable to provide a stopl for the pan and the plugwhen they are thrust onto the tongue, and for this purpose the plate 4has a stop 4", in which there is an adjustable clamp 4*', against whichthe end of the pocket is stopped.

For causing the mattress to retain its proper position on the woven-wirespring with the aperture 1a properly registered with the aperture 2a Iprovide corner-posts 16, projecting upward from the woven-wire mattressat the corners of the aperture therein, which, entering the aperture inthe mattress and engaging it at the corners, prevent the mattress fromslipping up or down or cross- Wise, as it is liable to do in themovements of the patient. These posts are conveniently made each ofasingle piece of wire folded upon itself at the middle point, as may beunderstood from Figs. 2 and 3, to form the upstanding terminal, the twoends being bent out horizontally at right angles to each other (see Fig.2) above the woven-wire fabric and secured firmly thereto by staples16a, passing through the woven wire and through a baseplate 16b,lodgedunder the woven wire into which the staples are riveted, clamping thewoven-wire fabric between the wire terminal 16a and said plate.

For conveniently mounting the crankshafts 5 on the side rail 7 and forsecuring to these crank-shafts the lever-arms 9 and 9,

above described, fittings are made in the form seen in Fig. 2 and shownin section in Fig. 4. The fitting 6, havinglugs 6a for bolting it to thehorizontal flange of the side rail, constitutes the journal-bearingofthe rockshaft and projects inward far enough to clear the horizontalilange of the side rail. The fitting 18 is bored for the rock-shaft andkeyed fast thereto by the cross-pin 19, (see Fig. 4,) and it has the lug20,formed to seat the lever-arm 9 or 9u, which is secured in its seat insaid lug by a single bolt 21, one bolt being sufficient to render rigidbecause of the lateral flanges 20a, between which the bearing is lodgedin the lug.

1. In an invalid-bed, in combination with the mattress and the supportfor the same having registering apertures; a plug adapted to be enteredthrough the aperture in the support and occupy the aperture in themattress; a plate on which such support is mounted; parallel crankrock-shafts mounted on the bed-frame having their crank-wrists connectedby the plate and havingparallel leverarms and a link connecting them,the ratchetbar, 11, connected to one of the lever-arms and a stud forengagement with the ratchetbar.

2. ln an invalid-bed, in combination with the bed-frame, a mattress andmattress-support thereon; parallel cranked rock-shafts mounted on thebed-frame; a link plate connecting their crank-wrists, said rock-shaftshaving parallel lever-arms and a link connecting them, one of the armsbeing extended past the pivot of the link; a ratchet-bar pivotallyconnected with said extended leverarm, and a stud for engagement withthe ratchet-bar carried by the other lever-arm.

3. In an invalid-bed, in combination with the bed frame, two parallelcrank shafts mounted thereon having their cranks extending downwardly; alink plate connecting their crank-wrists, said rock-shafts having each alever-arm at both ends; links connecting the two arms at each end, oneof the lever-arms at one end being extended beyond the link-pivot; aratchet-bar connected to said extended arm, and a stud for engagement ofthe ratchet-bar carried by the corresponding arm of the otherrock-shaft. l

4. In an invalid-bed, in combination with the bed-frame, two parallelcrank-shafts journaled in the side bars of the frame and cranked betweenthe bars 5 a link plate connecting their crank-wrists, said rock-shaftshaving each a rigid lever-arm other than the crank-arms and extending ata considerable angle to said crank-arms; a link connecting saidlever-arms, one of the lever-arms being extended beyond the pivot of thelink a bar having pivotal connection to one of the arms `and slidingconnection with the other arm at different distances from thecrank-shafts,

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and means for releasably securing said bar at said sliding connection.

5. In an invalid-bed, in combination with the bed-frame, parallel shaftsmounted in the side bars thereof and cranked downwardly between the sidebars; a link plate connecting their crank-wrists; said rock-shaftshaving parallel lever-arms extending at an angle to their crank-armsrespectively; a link connecting said lever-arms at equal distances fromtheir respective crank-shafts, and a second link having a pivotalconnection with one ofthe arms and a sliding connection with the otherat different distances from the crank-shaft, and means for releasablyengaging said second link at its said sliding connection.

6. In an invalid-bed, in combination with the bed-frame, parallelrock-shafts journaled on the side bars and cranked downwardly betweensaid bars; a link plate connecting the crank-wrists, said shafts havingparallel lever-arms extending at an angle to the crankarms respectively;a link connecting said parallel arms. at equal distances from theirrespective rock-shafts; a second link connecting one of the lever-armswith the iirst link, one of said connections being a sliding connection,and means for releasably engaging it at said sliding connection.

7. In an invalid-bed, in combination with the bedframe, two parallelrockshafts mounted on the side bars thereof; a link plate connecting thecrank-wrists, each rockshaft having a lever-arm extending at an angle tothe crank-arm; a link connecting the two lever-arms at equal distancesfrom the crank-shafts, one of the lever-arms being extended below thelink connection, and a second link pivoted to said extended lever-armand notched for engagement with the pivot of the link to the other arm.

8. In an invalid-bed, in combination with the bedframe, two parallelrockshafts mounted on the side bars thereof; a link plate connecting thecrank-wrists, each rockshaft having a lever-arm extending at an angle tothe crank-arm; a link connecting the two lever-arms at-equal distancesfrom the crank-shafts, one of the lever-arms being extended below thelink connection, and a secondlink pivoted to said extended lever-armbelow the pivot of the first link and slotted and notched for engagementwith the pivot of said first link to the other lever-arm.

9. In an invalid-bed in combination with a mattress-plug or bed-pan andapparatus for raising and lowering the same, comprising a plate forsupporting the plug or bed-pan having an upwardly-struck boss forming acavity in the lower side of the plate, the bottom of the plug or bed-panhaving a recess to receive such protruding element.

10. In an invalid-bed, a bed-pan and an apparatus for raising andlowering the same comprising a plate for supporting the bedpan which hasan upwardlystruck and downwardly-open boss, in combination with abed-pan having a corresponding recess struck upwardly from thebottomadapted to receive the boss, and means protruding into the cavity of thedownwardly-open boss for securing the plate and pan together at the saidcorresponding boss and recess.

11. An invalid-bed having an apparatus for raising and lowering amattress-plug or bed-pan, said apparatus comprising a plate forsupporting the plug or bed-pan, in combination with such plug or panadapted to be lodged on the plate, the plate having a boss struck fromit protruding upwardly, the bottom of the pan or plug havingv acorresponding recess struck upwardly from the bottom adapted to receivethe boss of the plate.

12. An invalid-bed having an apparatus for raising and lowering amattress-plug or bed-pan, said apparatus comprising .a plate 4 forsupporting the plug or bed-pan, 1n combination with such plug or bed-panadapted to be lodged on the plate, the plate having a boss struck fromit, protruding upwardly, and downwardly hollow, the bottom of the plugor bed-pan having a corresponding recess struck upwardly to receive theboss, the boss having an oblong slot, and a turn-button projecting fromthe bottom of the recess through such slot adapted to be turned acrossthe same.

13. In an invalid-bed, in combination with a woven-wire-mattresssupport, a mattress mounted thereupon, the support and the mattresshaving registering apertures for a plug or bed-pan; corner posts orguides at the corners of the aperture in the mattress-support inposition to enter the corners IOO of the aperture in the mattress, saidposts being bound rigidly to the woven-wire-mattress support.

14. In an invalidbed, in combination with a woven-wire-mattress support,a mattress thereon, said support and mattress having registeringapertures for a plug or bedpan; corner posts or guides at the corners ofthe aperture in the mattress-support for engaging the corners of theaperture in the mattress, said corner-posts being made of a rod or wirefolded upon itself and having the two branches bent at right angles tothe folded portion and at an angle to each other; and a corner-platelodged on one surface of the woven-wire mattress and secured thereto andto the terminal feet of the bent-wire post.

In testimony whereof we have hereunto set our hands, at Chicago,Illinois, this 15th day of May, A. D. 1905.

LYDIA A. GOODSON. WM. A. NASON. In presence of- CHAs. S. BURTON, J. S.ABBOTT.

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